Finding the Fourth Proportional to 143,300.48, 197,693.32 and 89,492.08

Step by Step Solution

1. Step 1: Write the proportion equation
   143,300.48 : 197,693.32 = 89,492.08 : x
2. Step 2: Convert to fraction form
   143,300.48/197,693.32 = 89,492.08/x
3. Step 3: Cross multiply
   143,300.48x = 197,693.32 × 89,492.08
4. Step 4: Simplify right side
   143,300.48x = 17,691,986,408.91
5. Step 5: Solve for x
   x = 17,691,986,408.91/143,300.48
6. Step 6: Final answer
   x = 123,460.76